miller



ftlnittn 'tntes atrnt ffirrf.

F. c; M1 L nn n, o F EV A Nas can'rltn, NEW YORK. i Letters atent Nof', datcd flfay 2d, 1868.

t IMPROEMNT In PORTBLB oVBNs.

'tlge ,rlgtnle referat iq iu tlgest Estars atcnt inni making part m tuz tli mc.

'ro ALL wHoM 11' MAY 'o ioNeERNz Be it known that I, F. C. MILLER, of Evans Centre, in the county of Eric, and State of New York, haveV invented a new and useful Improvem'ent in Bakers; and 'I do hereby declare that the following is, a full and exact description thereof, reference being` had to'the aeeompan-ying drawing's, in which-f I Figurel is' a prspective view of myiinve'n tjon. :Figure 2, a lougitudinal Vertical section. r i Figure 3 shows one of the bake-pans detached.

Fgure 4 is one of the slides. Like.le tters.of reference designate corresponding parts in all the figures.

. My invention consists in the combination, with a'n' enclosed bahing-ehamber, having a central space, of pans made up of two parts, whichmay be senarated, the one part allowing a free passage of hot air or steam by means of slides, as hereinafter set forth. L

In the'drawings, A indi'cates theouter metal case or jachet for r'etaining the heat, having a tight cover, a, and provided atcach side, near-the top', with aseries of holes coveredwith a-slde, 6, to act as a regulator-when vsteam is used. The front ofV this outer case has openingsto admit drau'ers or pans G G, of which any suitable number may be-us ed, according to the size of the oven.

'The bottom of this case is provided with openings, c c, to admit steam, when used as a steamer, or to be set over. the open griddles of an ordinary cook-stove, when desired If steam is to be used, it is set in any suitable pan containing water. v

B represents the inner case or even, which stands on feet d d, and has projeetions e, to keep it at a sufiicient' distance from the out'er case, to allow the heated air or steam to'entirely surround it. It is provided ivith' partitions, running longitudinally through itscent're, with ;space between, over which sets the uplier bake-Bn, and under it theother. There nia-y be as many of these hollow partitions used' as 'desired, or the size of the even willallow. These hollow part'itions do not come out flush'with thefront of the case, but are fixed so as to have a space in front to allow the heat to ris'e in front of the bake-paus. g g g represent holes in the sidesand back of inneroven, to a'clmit heat or stearn under and over bake-pans'into space z'f Bake-pans C C are prefa` r i erably made with flaring sides', for convenience ,inv ta'hin'g out bread, tc. These pans are just the length of the partitions, and the width ofthe inside of the inner ven. To' each of these pans Vis attached a false front or frame, D. 'There' is an open space, E, between these fronts and the end of the pans, to allow the heat to ascend freely. These fronts are madeito overlap and fittightly to the outer ease'orjacketz They are each connected with the front of the pans by a'lip, 8, whichisets on a corresrionding lip,`8', on the front of the hake-pan.

These fronts are detached from the pans when any of the latterareinot needed, and arethen set independeritlylin their places in the outer case, to stop the opening and confine the heat from escaping outward. i

F F are slides, which are inserted iinder each of the bake-pans and fronts D, each having an oblong opening,

h, fig. 4, corresponding with the spaces E E, between the bak'e-pans O C, and'false fronts D D. These slides, l when partly pulled out, bring their openings z k, where the spaces E Eare, and allow the free passage upwards of. the heat orsteam from the bottom of 'the even. `When pushed entirely iu, they severa'lly shut ofthe heat from the front of pans above'them. a

i If desired to use one and not the other belce-pan, it is done by`pulling out the slide undernettth the one used,` and taking out the other pans, but keeping the false fronts in the outer case.

w By this 'construction and arrangement of'the apparatus,` I ani enabled to surround theenclosed chamber B by a layer oflhot air or steam, also to aduiit it inthe space z', between the pans, and furthermore, to gauge its passage up over the pans by slides'F. The advantages of these slides F F'are that they allow, when pulled out, the heat or steam to'rise in front of the p'a'ns, as beforeI stated, ther'eby having an eqhal heat diifused, permitting the uniform baking of bread, 8m., and thereby doing away with the diflieulty of ordinarv ovens. of btwpg to take out what s ,being naked anal turn' it. They-8.150 grafluate the heat by being parfiy pufle aut I. yarfly pushed in. w

This method sf surroutiding the even, of admitting hot air between the section, and of gaugig ;the ow over he pana, has never before been accomplished, so fm' as I am awae.

The making of the pana in 'wo sections D, 80 as to be separted at pl'caslu', and the frming of the part En skelcton or pen frm, ta allow the passage of hot air, I also believe tq be original' 'wthmysel'fi What I clam as my immntion, and esix'a' to secure by Letters Patent, 38-- 'T he combination, wih the chambel'B', provie with central heatng-space i, zm surrounded by jacket A, of the pana macie up of two parts', O D, Vthe latei' being deched, and m skeleton 01' epen form, 'for allowing a. free pasaagc of air 01' steam, and covere by slies F, the whale Operating in the manner and for the purpose herein sefi fmrh. I In winess whereof, I hafive hereunto sige my name in the presence of two subscrbing witnesses.

` F. o. MILLER. Wnesses:

SAMUEL LAxE, J JR. DMK: 

